Abstract
In this research Ti-zorite phase (ETS-4) was examined as a photo catalyst for degradation of malachite green dye. Incorporation of Vanadium into framework of ETS-4 was performed in different Ti:V mole ratio within the same preparation conditions. XRD, UV. Visible diffuse reflectance, IR, SEM, and EDX analysis were used to characterize the prepared zeolites. In addition, Photo catalytic degradation of malachite green was chosen as a model reaction to examine the prepared zeolites. The results showed that the pure phase of ETS-4 was attained as only pure phase. Incorporation of Vanadium increases the crystallinity of ETS-4 phase reaches maximum crystallinity at 50% V after which crystallinity decreases again reaches null at 80-100% V samples. SEM and EDX analysis in addition to XRD lattice analysis proved the successful incorporation of V into the framework of zeolite matrix. More than one evidence were arisen that both vanadium and titanium active centers was responsible for photo catalytic degradation. A correlation between the structure and surface titanium active centers were put to elucidate the photo catalytic activity. Three dimensional synergism function was written, finding that, maximum synergism was attained at 5-20 min at 50-70% V.